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BIG MINERAL SPECIMENSANNIVERSARY SALE 25 - 50% OFF ALL MINERAL SPECIMENS Return to Mineral Specimen Galleries
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C-277 Calcite Hilton Deposit, Borrego Springs, San Diego County, CA 29 x 17.3 x 11.5 cm A dramatic and huge plate of large Calcite crystals of from south-eastern San Diego County. This impressive specimen features translucent-transparent, bladed crystals of Calcite measuring up to 10 centimeters in size. The Calcite crystals fluoresce a light-hued red\pink color. Known by locals as "The Calcite Mine" this location was operated from 1942 to 1944 for the Polaroid Corporation to produce optical grade Calcite in order to make the Polaroid Optical Ring Gun-sight. This specimen was a part of my award winning mineral collection. This location has been off-limits to collectors since 1974 when the area surrounding it was designated Anza-Borrego Desert State Park.
T-336 Elbaite Tourmaline on Microcline SOLD Virgem da Lapa, Minas Gerais, Brazil 13.3 x 11.9 x 12.5 cm A stout porcelain-like Microcline crystal studded with gemmy crystals of green & blue-green Elbaite, most of which are terminated. Better known for the great Topaz crystals that have been found there, the Tourmaline from this famous location hold their own when compared to other Brazilian localities.
B-256 Aquamarine,
Microcline, Smoky Quartz, Fluorite & Opal-AN (Hyalite) Erongo Mountains, Karibib Constituency, Erongo Region, Namibia 15.6 x 13.4 x 9.4 cm This large specimen consists of many twinned Microcline crystals measuring to 7 cm that serve as a host for numerous crystals of Aquamarine and Fluorite. The Aquamarine crystals range in color from sky blue to a light, inky-blue hue. The Fluorite crystals that seem to be everywhere on this specimen are found as cubes, some of which are modified on their edges and range in color from mint to medium green. There is one yellowish Fluorite crystal on this specimen that was suggested to me as possibly being Yttrofluorite but I have not had it tested. Also present on this specimen are partially clear crystals of Smoky Quartz measuring up to 3cm. The white mineral on the top portion of this specimen is Opal-AN, also called Hyalite and is fluorescent. All of crystals on this specimen are complete and undamaged. An aesthetic and very 3-dimensional specimen that can be displayed with several different orientations and always look good..
F-184 Fluorite
with Calcite, Quartz and Pyrite El Hamman Mine, Meknès Prefecture, Morocco 15.5 x 14.5 x 4.1 cm. This specimen features many medium to dark-green crystals of Fluorite. This specimen has several interesting features; the first being numerous water-clear Quartz crystals up to 3 mm. in size that cover the entire specimen. The top of the specimen is blanketed with Calcite and there are dozens of brass-colored, ball-like Pyrites covering the specimen. This Fluorite specimen is complete, with no damage. The back of the specimen is flat , but shows many growth hillocks as well as many white, needle-like inclusions. A good example of a combo specimen for this location.
C-316
Elbaite & Quartz on Cookeite cast after Tourmaline Araçuaí, Minas Gerais, Brazil 12.9 x 7.6 x 5.2 cm A vug of Cookeite that once encased a large Tourmaline crystal that dissolved away leaving a bed of greenish-blue Elbaite on the lower front portion of the specimen. The termination of this specimen features a 2 cm Tourmaline crystal that has been replaced by Lepidolite. Also present on the Cookeite “shell” are several groups of Quartz crystals.
W-025 Wulfenite Mezica Mines, Mezica, Carinthia Region, Slovenia 14.6 x 12.5 x 6.7 cm A large matrix specimen from one of Europe's more noteworthy Wulfenite locations. This specimen features greenish-brown crystals of Wulfenite sandwiched between secondary overgrowths of orange-yellow Wulfenite. Also present are smaller dipyramidal crystals as singles and small groups. The Crystals on this specimen measure up to 1.6 centimeters in size.
R-043 Rosasite
on Dolomite Bou Beker, Touissit-Bou Beker District, Jerada Province, Morocco 12.3 x 11.7 x 7.4 cm This specimen features many spheres of the Copper carbonate mineral Rosasite on a matrix of pink-colored Dolomite crystals. Some of the Rosasite spheres and some of the Dolomite crystals have a thin coating of clear Gypsum. There are also several amorphous masses of green-colored Malachite present on this specimen.
F-313 Fluorite
with Alstonite & Sphalerite SOLD Bethel Level, Minerva #1 Mine, Ozark-Mahoning Group, Cave-in-Rock, Hardin County, IL 32.7 x 19.1 x 10.8 cm A large plate of blue-colored Fluorite that has been overgrown with crystals of yellow-colored Fluorite and dark crystals of Sphalerite (up to 3.2 cm in size). The Fluorite crystals were then partially dissolved then coated with many small crystals of the rare Ba-Ca carbonate mineral, Alstonite. The reverse side of this specimen is also richly covered in Alstonite. This specimen can be displayed in several different orientations and look equally good. This specimen has no damage; although some areas have been contacted. This important specimen was mined in the late 1960's.
Q-567 Amethyst
on Chalcedony
SOLD Amethyst Mountain, Yellowstone National Park, Park County, WY 18 x 14 x 8.4 cm A large cabinet-sized plate of Amethyst on Chalcedony from Amethyst Mountain, Eastern Fork of the Yellowstone River, NW Wyoming. The crystals on this specimen have a light, lavender-purple hue. The smaller crystals have unusual stepped faces on their terminations. Nearly all of the crystals on this specimen are intact. This specimen pre-dates Yellowstone Park and is most likely circa 1860's to early 1870's. It was collected before collecting in Yellowstone was prohibited and had resided in the Philadelphia Academy Collection for over a century until 2007 when the collection was dispersed. I think any mineral specimen from America's most famous park is to be treasured and can be considered an American Heirloom.
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